Trading strings to save money on experiments

Anybody out there have a set of medium Helicore orchestras or the same gage hybrids they would be willing to trade, or just the E string of either?I was originally going to trade my Obligatos,but the arco is to die for,especially trying to bow on pizz strings for so long.The E is just a little floppy for my hard playing, mostly acoustic gigging right now.I just need a little more tension but not so much that the over all feel changes.WhatI have to trade is a med,helicore pizz set used, but still bright ,a never used G ,A HEAVY GAGE E ON FOR A COUPLE OF HOURS of the same.2 sets of weichs ,one 4 months old the other around 6.a set of spiros,Im in the BOSTON AREA.By the way thanx for all the great suggestions from last time!